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I have an HP Pavillion 27xi LED IPS monitor that randomly fails and fails in different ways. In this I mean that some times it works for 30 seconds then goes black with the power light still on. Other times, the screen comes on but then the OSD menu freezes on the screen. Sometimes it doesnt even get that far and it just stays black but the power light comes on. Also, in the rare occurance that it turns on and stays on, if the resolution is changed or signal is lost for a split second, it goes black.

I would also like to mention that by black I mean black. It is not the backlight going out that is a problem. Also, I am running multiple mobitors and the other two work fine throughout these failures so that should rule out the video card (which is brand new).

I have tried different cables (2 different HDMI cables and a DVI instead) and there is no difinitive difference. I have also tried changing out the power supply with a different one.

My question then is, what hardware component could be the issue to cause these inconsistant failures? I would think that if something was truly bad it would produce consistant failures but it is not.

T0t3sMcG0t3s
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1 Answers1

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Considering the 'modern' LED backlit monitor dosen't have an inverter, and there's no CCFL bulbs to fail, chances are its a capacitor. Monitor capacitors tend to be 1) abused badly 2) cheap.

If you're going to replace them, don't forget to get a quality capasitor with low ESR for long life, rather than any random cheap one.

Journeyman Geek
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